For the source text click/tap here: Bava Batra 95
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The mishna teaches: When purchasing a cellar containing barrels of wine, one accepts upon himself that up to ten barrels of souring wine may be present in each hundred barrels purchased.
If he said: I am selling to you this particular cellar, without mentioning the word: Wine, then even if everything he gives him is wine that had turned into vinegar, it has come to the buyer and the sale is valid.
The mishna’s ruling that the buyer must accept that up to ten percent of the wine might be souring does not accord with any of the rulings of the baraita.
We explore the history of wine cellars and the chemistry of wine turning to vinegar, finally. Pro Flusser’s analysis of the parable of new wine in old flasks (Luke).